公开(公告)号：US07239596B2

公开(公告)日：2007-07-03

申请号：US10848612

申请日：2004-05-19

申请人： Ryo Saitoh ,  Fumihiko Ito ,  Yoshinari Yokochi ,  Makoto Itonaga

发明人： Ryo Saitoh ,  Fumihiko Ito ,  Yoshinari Yokochi ,  Makoto Itonaga

IPC分类号： G11B7/00

CPC分类号： G11B7/139 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1392 ,  G11B2007/0006

摘要： There is disclosed an optical pickup device including: a blue semiconductor laser which emits a first laser light having a wavelength of 450 nm or less to record on or reproduce from an extra-high density optical disc; a red semiconductor laser which emits a second laser light having a wavelength longer than that of the first laser light to record on or reproduce from a DVD having a low recording density; an objective lens; and an aberration correction element. The objective lens is designed for the extra-high density optical disc, and has a numerical aperture (NA) of 0.75 or more. The aberration correction element passes the first laser light as such and thereafter allows the light to be incident upon the objective lens, whereas the element limits an aperture with respect to the second laser light and diffracts the second laser light so as to correct an aberration with respect to the DVD and thereafter allows the light to be incident upon the objective lens.

摘要翻译： 公开了一种光拾取装置，包括：蓝色半导体激光器，其发射波长为450nm以下的第一激光以在超高密度光盘上记录或从超高密度光盘再现; 红色半导体激光器，其发射波长比第一激光的波长长的第二激光，以从具有低记录密度的DVD记录或再现; 物镜; 和像差校正元件。 物镜设计用于超高密度光盘，数值孔径（NA）为0.75以上。 像差校正元件本身通过第一激光，然后允许光入射到物镜上，而元件限制相对于第二激光的光圈，并衍射第二激光以校正像差 相对于DVD，然后允许光入射到物镜上。

公开(公告)号：US06527173B1

公开(公告)日：2003-03-04

申请号：US09532214

申请日：2000-03-22

申请人： Kenji Narusawa ,  Kazunori Namiki ,  Toshiro Kohno ,  Tadashi Aizawa ,  Yoshinari Yokochi ,  Haruo Matsuo ,  Manabu Sakane

发明人： Kenji Narusawa ,  Kazunori Namiki ,  Toshiro Kohno ,  Tadashi Aizawa ,  Yoshinari Yokochi ,  Haruo Matsuo ,  Manabu Sakane

IPC分类号： G06K500

CPC分类号： G06K19/077 ,  G03H1/08 ,  G03H2001/0288 ,  G03H2001/184 ,  G03H2001/2244 ,  G03H2210/20 ,  G03H2210/54 ,  G03H2230/10 ,  G06K19/16

摘要： The CGH (computer generated hologram) readout section (4) reproduces an image of the CGH (28), which is formed in the data storage area (52) of the crude card (26). The CGH certifying section (5) judges whether the card is genuine or fake and obtains an ID (identification) information. In a case that the card is genuine, the ID information is supplied to the data processing section (6). The data processing section (6) inputs a personal information of a person to be a cardholder and also inputs a face picture of the person. These data are registered in the database (2) in response to the ID information. A part of or all of the personal information is outputted to the IC reader/writer (8) and written into the IC module (53). Further, a part of the personal information and the face picture are outputted to the color printer (7) as a printing information and printed on the surface of the crude card (26). Then the personal ID card (51) can be issued after forming a protection film over the printed surface of the card.

摘要翻译： CGH（计算机生成的全息图）读出部分（4）再现形成在粗卡（26）的数据存储区域（52）中的CGH（28）的图像。 CGH认证部（5）判断卡是真品还是假货，并获得ID（识别）信息。 在卡是正品的情况下，ID信息被提供给数据处理部（6）。 数据处理部（6）输入作为持卡人的人的个人信息，并输入该人的脸部照片。 这些数据响应于ID信息被登记在数据库（2）中。 将个人信息的一部分或全部输出到IC读写器（8）并写入IC模块（53）。 此外，将个人信息和面部图像的一部分作为打印信息输出到彩色打印机（7），并印刷在粗卡（26）的表面上。 然后可以在卡的印刷表面上形成保护膜之后发出个人身份证（51）。

公开(公告)号：US06252685B1

公开(公告)日：2001-06-26

申请号：US09433906

申请日：1999-11-04

申请人： Yoshinari Yokochi

发明人： Yoshinari Yokochi

IPC分类号： G03H100

CPC分类号： G06K9/745 ,  G03H1/0011 ,  G03H1/0891 ,  G03H1/26 ,  G03H2001/085 ,  G11B7/24 ,  G11B23/281 ,  Y10S283/901 ,  Y10S283/902

摘要： A phase watermark hologram “W” is composed of a blaze having binary phase difference of 2&pgr;×n, where “n” is a natural number of more than 1. An watermark appears in response to phase difference, which changes by a faked blaze. A phase watermark hologram “W” and a phase hologram “D” indicating data are formed on a same surface of a substrate mixed in arbitrary locations and arbitrary ratio of both holograms.

摘要翻译： 相位水印全息图“W”由具有2pixn二进制相位差的闪耀组成，其中“n”是大于1的自然数。响应于由假燃烧而变化的相位差出现水印。 指示数据的相位水印全息图“W”和相位全息图“D”形成在任意位置混合的基板的相同表面上，并且两个全息图的任意比例。